canet



4 Sheets-Sheet '1;

(No Model.)

J.B.-G.A.GANET. APPARATUS FOR POINTING OR LAYING GUNS. o. 430.062.

Patented June 10, 1890.

co., Puma-mum, WASHINGTON, u. c.

'(No Model.) 4 Shegts-Sheet 2L J.B.G.A..CANET. APPARATUS FOR POINTING 0R LAYING GUNS.

N Patented June 10,1890.

(No Model.) 4 Sheets-Sheet 3.

J, B. G. A. OANET. A v APPARATUS FOR POINTING 0B, LAYING GUNS. N0. 430,062.

Patented JunelO, 1890.

unma PETERS cm, mom-1.1mm, wAsulNm'cu, u

4 Sheets-Sheet 4.

(No Model.)

J. B. G. A. GANET. APPARATUS FOR POINTING 0R LAYING arms.

Patented June 10, 1890.

UNITED STATES PATENT OFFICE.

JEAN BAPTISTE GUSTAVE ADOLPHE CANET, OF PARIS, FRANCE, ASSIGNOR OF ONE-HALF TO SIR JOSEPH \VHITVVORTH & COMPANY, (LIMITED,) OF

OPENSHAIV, ENGLAND.

APPARATUS FOR POINTING Old LAYl NG GUNS.

a SPECIFICATION forming part of Letters Patent No. 430,062, dated June 10, 1890.

Application filed March 27. 1889- Serial No. 304,931- (No model.) Patented in France September 9,1886,No. 178,422, and June 29, 1887, No. 184,518, and in England uly 1, 1887, Ila-9,373-

To all whom it may concern.-

Be it known that I, JEAN BAPTISTE Gus TAVE ADOLPHE CANET, engineer, a citizen of the Republic of France, andaresident of Paris,

France, have invented certain new and useful Improvements in and Relating to Apparatus for Pointing or Laying Guns, (for which I have obtained a patent in Great Britain, No. 9,373, dated July 1, 1887, and in France, No.

to 178,422, dated September 9, 1886, and No. 184,518, dated June 29, 1887, which invention was included in the specification accompanying my application for Letters Patent of the United States, filed August 21, 1888, No. 283,390,) of which invention the following is a specification, reference being bad to the accompanying drawings.

This invention relates to apparatus for pointing or laying guns.

The said invention comprises a spur-wheel segment and a worm-wheel segment, which are rigidly united and are connected by suitable gearing with the gun and with a crankhandle or other device for operating them to elevate or depress the gun. I prefer to form the spur-wheel and worm-wheel segments in one piece and to combine the same with a segmental rack or elevating-arc firmly at tached to the gun.

My said invention also comprises means whereby the said segments may be operated, whatever may be the position of the gun upon the chassis or slide or while the gun is moving thereon.

In the accompanying drawings 1 have shown how my said invention may be conven iently and advantageously carried into practice.

Figure 1 is a plan of part of a gun-mount- 0 ing embodying my said improvements. Fig.

2 is a sectional side elevation of the same, the parts being shown in the positions which they occupy when the gun is horizontal. Fig. 3 is a similar View, the parts being shown in the positions which they occupy when the gun is at its greatestaugle of elevation. Fig. 4 is a rear elevation of the said portion of the gun-mounting. Figs. 5, 6, and 7 are difierent views illustrating details of construction.

Like letters indicate corresponding throughout the drawings.

A indicates a part of the platform, turntable, or under carriage carrying the chassis or slide B.

0 isthe cradle or top carriage in which the gun is supported by its trunnions and which recoils with the gun upon the said chassis or slide against the resistance of suitable hydraulic brakes.

a is a worm-wheel segment,which isformed with or firmly attached to a spur-wheel segment b. The combined spur and worm wheel segments are fitted to rotate on a shaft or bolt 0, secured in the cradle or top carriage C. The spur-wheel segment a is geared with a segmental rack or elevating-arc d, fixed on the gun. I provide the means hereinafter described for turning the said spur and worm wheel segments a 6 upon or about their axis, whatever may be the position of the gun and top carriage upon the chassis or under carriage or while they are moving there0nthat is to say, a shaft e, capable of being rotated by a crank-handle f or by other suitable means and having a long keyway e, is fitted to rotate in bearings g, formed on or firmly attached to the under carriage A. A bevelwheel h is mounted on the shaft e and is provided with a key or feather fitting into the said keyway e. The said bevel-wheel h is held in a bearing j, formed with or firmly attached to the cradle or top carriage C, so that the said bevel-wheel will move to and fro with the said cradle,and will in this movement slide parts 50 upon the said shaft e. The bevel-wheel h is geared with another bevel-wheel k, fixed on a vertical shaft Z, which is supported in bearings 711., formed with or firmly attached to the cradle C. A worm or endless screw 12 is also fixed on the shaft Z and is geared with the 0 worm-wheel segment a. By this mechanism the vertical pointing or elevation of the gun can be efiected; but as the worm n cannot be driven by the worm-wheel segment a any tendency to movement of the gun upon or 5 about its trunnions, due to the shock of the recoil, will be counteracted by the said mechanism-an advantage which is not obtained by the toothed gearing ordinarily employed. Moreover, by the construction of the elevating mechanism in the manner above described I provide for keeping it all within the space inclosed by the brake-cylinders and other parts of the gun-mounting, so that it is well protected against injury.

It is obvious that other suitable means for imparting rotary motion to the toothed wif'eel composed of the spur and worm wheel segments may be substituted for the bevel-gearing above described; also, that any equivalent device may be substituted for the segmental rack or elevating-arc hereinbefore mentioned.

It will be seen that by forming the wormwheel teeth a on one part and the spur-wheel teeth 1) on another part of the periphery of the same wheel and combining the said wheel with a worm or endless screw and an elevating-arc I am enabled to construct very simple, cheap, and efficient elevating mechanism, which cannot be driven by the weight of the gun or by the tendency thereof to move about its trunnions under the influence of the shock or concussion due to the recoil. Moreover, I am enabled to construct elevating mechanism which can be conveniently arranged between the gun and the recoil-brake at one side thereof without increasing or with but a slight increase in the width of the gunmounting.

What I claim is 1. A gun mounting provided with elevating mechanism comprising a wheel having on one part of its periphery worm-Wheel teeth and on another part thereof spurwheel teeth which are geared with a segmental rack or elevating-arc fixed on the gun, and a worm or endless screw geared with the said wormwheel teeth, for the purposes above specified.

2. In a gun-mounting, the combination, with a segmental rack or elevating-arc fixed on the gun, of a wheel having on one part of its periphery worm-wheel teeth and on another part thereof spur-wheel teeth which are geared with the said elevatingarc, and a worm or endless screw geared with the said wormwheel teeth and fixed upon a shaft which is fitted to rotate in hearings on the gun-mounting, for the purpose above specified.

3. In a gun-mounting, the combination, with the gun, the top carriage, and the chassis, slide, or under carriage, of a segmental rack or elevating-arc fixed on the gun, a wheel which is fitted to turn upon a shaft, stud, or bolt fixed in the top carriage, and which has on one part of its periphery worm-wheel teeth and on another part thereof spur-wheel teeth which are geared with the said elevating-arc, and a worm or endless screw geared with the said worm-wheel teeth and fixed upon a shaft which is fitted to rotate in bearings on the top carriage, substantially as and for the purposes set forth.

4. In agun-mounting, the combination,with the gun, the top carriage, and the chassis, slide, or under carriage, of a segmental rack or .elevating-arc fixed on the gun, a wheel which is fitted to turn upon a shaft, stud, or bolt fixed in the top carriage, and which has on one part of its periphery worm-wheel teeth and on another part thereof spur-wheel teeth which are geared with the said elevating-arc, a worm or endless screw geared with the said worm-wheel teeth and fixed upon a shaft which is fitted to rotate in bearings on the top carriage, and an operating-shaft fitted to rotate in hearings on the chassis or under carriage and geared with the worm-shaft, substantially as and for the purposes set forth.

5. In a gun-mounting, the combination, with the gun, the top carriage, and the chassis, slide, or under carriage, of a segmental rack or elevating-arc fixed on the gun, a wheel which is fitted to turn upon a shaft, stud, or bolt fixed in the top carriage, and which has on one part of its periphery worm-wheel teeth and on another part thereof spur-wheel teeth which are geared with the said elevating-arc, a worm or endless screw geared with the said worm-wheel teeth and fixed upon a shaft which is fitted to rotate in bearings on the top carriage, and an operating-shaft fitted to rotate in bearings on the chassis or under carriage and geared with the worm-shaft by means of bevel-wheels, one of which is keyed upon the said operating-shaft, so that it will turn therewith, but can slide longitudinally thereon, substantially as and for the purposes set forth.

6. In a gun-mounting,the combination of a wheel composed of a worm-wheel segment a and a spur-wheel segment I), a segmental rack or elevating-arc d, fixed on the gun and geared with the said spur-wheel segment, a worm n, geared with the said worm-wheel segment, a shaft l, on which the worm is fixed, a shaft e, mounted in bearings in the under carriage, and bevel-wheels h k, connecting the said shaft-e with the worm-shaft Z, the bevel-wheel kbeing keyed upon the said shaft 2, so that it must turn with the said shaft, but can slide along it, thus permitting the pointing or laying of the gun in any position of the top carriage on the chassis or under carriage, all substantially as and for the purposes set forth.

In testimony whereof I have hereunto signed my name in the presence of two subscribing witnesses.

JEAN BAPTISTE GUSTAVE ADOLPHE CANEI.

Witnesses:

R. J PRESTON, JOHN H. R. WHINFIELD. 

